发明名称 |
Spread spectrum adaptive power control communications system and method |
摘要 |
A system and method for adaptive-power control of a spread-spectrum transmitter of a mobile station operating in a cellular-communications network using spread-spectrum modulation. A mobile station transmits a first spread-spectrum signal. A base station has an automatic-gain-control circuit for generating an AGC-output signal, from a received signal. The received signal includes the first spread-spectrum signal and an interfering signal. The base station also has a correlator for despreading the AGC-output signal, a power-measurement circuit responsive to processing the received signal with the despread AGC-output signal for generating a received-power level, a comparator coupled to the power-measurement circuit for generating a comparison signal by comparing the received-power level to a threshold level, a transmitter for transmitting a second spread-spectrum signal, and an antenna. The mobile station has a variable-gain device responsive to the comparison signal for adjusting a transmitter-power level of the first spread-spectrum signal.
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申请公布号 |
US5535238(A) |
申请公布日期 |
1996.07.09 |
申请号 |
US19940218198 |
申请日期 |
1994.03.28 |
申请人 |
INTERDIGITAL TECHNOLOGY CORPORATION |
发明人 |
SCHILLING, DONALD L.;GARODNICK, JOSEPH;LOMP, GARY;MOORE, III, TIMOTHY F. |
分类号 |
H04B1/69;H04B1/707;H04B7/005;H04W52/14;H04W52/22;H04W52/24;H04W52/52;(IPC1-7):H04Q7/00 |
主分类号 |
H04B1/69 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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